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GaryK [48]
3 years ago
15

peter had 400 stamps. 5/8 of then are U.S. stamps and the reat ate Canadian stamps. he gave 1/5 of the U.S. stamps to his friend

. how many stamps did he have left?
Mathematics
1 answer:
kipiarov [429]3 years ago
4 0

Answer:

350 Stamps left

Step-by-step explanation:

First do 5/8*400= 250

Then take 1/5 of it 1/5*250

You end up with 50 so do 250-50= 200 and add the 150 Canadian stamps to get a total of 350 stamps.

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A restaurant makes pizzas with 6-inch diameters ad 12-inch diameters. Which of the following statement is true?
a_sh-v [17]

Answer:

The correct option is c: the area of the 6-inch pizza is 1/4 the area of the 12-inch pizza.

Step-by-step explanation:

The area (A) of each pizza is given by:

A = \pi r^{2}

Where:

r: is the radius

For the 12-inch pizza we have:

A_{12} = \pi (\frac{12 inch}{2})^{2} = 113.1 inch

And for the 6-inch pizza we have:

A_{6} = \pi (\frac{6 inch}{2})^{2} = 28.3 inch

The ratio between A₆ and A₁₂ is:

\frac{A_{6}}{A_{12}} = \frac{28.3 inch}{113.1 inch} = 0.25 = \frac{1}{4}

Hence:

A_{6} = \frac{A_{12}}{4}

Therefore, the correct option is c: the area of the 6-inch pizza is 1/4 the area of the 12-inch pizza.

I hope it helps you!            

4 0
3 years ago
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svp [43]

Answer:

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Step-by-step explanation:

- \frac{p}{6}  = 9 \\  \frac{ - p}{6}  = 9 \\ \frac{ - p}{6}  \times 6 = 9 \times 6 \\  - p = 54 \\ p =  - 54

6 0
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Answer:

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